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Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (28): 18-22.doi: 10.11924/j.issn.1000-6850.casb15040007

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Seedling Preliminary Selection of Introduced Provenances of Chifeng Xanthoceras sorbifolia

Zhang Weisheng1, Zhao Shanshan2, Zhang Tianxiang3, Lin Shijie2, Bao Guangdao2, Yang Yuchun2   

  1. (1Management Center of Natural Forest Protection in Jilin Province, Changchun 130022;2Forestry Academy of Jilin Province, Changchun 130033;3Forestry Survey and Design Institute of Jilin Province, Changchun 130032)
  • Received:2015-04-01 Revised:2015-06-10 Accepted:2015-06-25 Online:2015-10-27 Published:2015-10-27

Abstract: The study aims to perform fast and superior seedling selection of X. sorbifolia in western Jilin Province. On the basis of evaluation of seed and fruit traits of different provenances of X. sorbifolia, the emergence rate, seedling height and its ground diameter growth from first, second to third-year old of 8 provenances of X. sorbifolia introduced from Chifeng in Inner Mongolia were investigated and analyzed. Result showed that there were significant differences in the emergence rate of different provenances, the emergence rate of 4#, 7# and 8# was better than that of other provenances, and emergence rate of 7# provenance was the best, which was 95.33%. Different provenances had height growth from 23.9 cm to 44.4 cm, 42.6 cm to 69.5 cm, and 51.2 cm to 63.1 cm from the first to the third year, and the corresponding ground diameter were from 0.398 cm to 0.610 cm, 0.556 cm to 0.774 cm, and 0.676 cm to 0.836 cm from the first to third year. Hence, the height and ground diameter growth of different provenances was in a significant increasing trend. In addition, height and ground diameter growth had significant differences among different provenances, height and ground diameter growth of 4#, 6#, 7# and 8# provenances were superior to that of other provenances. Cluster analysis of emergence rate, seedling height growth and ground diameter from first to third year, total height and diameter growth showed that, 8 provenances of X. sorbifolia could be divided into 4 categories, while performance of 7# provenance was the best, whose height and ground diameter growth value in total 3 years were 177.1 and 2.224 cm, respectively. Therefore, this article can promote X. sorbifolia genetic improvement and the application of high quality seedlings in environmental restoration and further utilization in Jilin.

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